index 73c04f6..90686b2 100644
@@ -1,23 +1,38 @@
---
-visibility: public
+visibility: public-edit
---
# data & analysis
## data exploration
+must-install:
+
+- **[graphify](https://github.com/safishamsi/graphify)** (22.1k stars) — turn any folder into a queryable knowledge graph. also in [[communication-and-writing]]. genuinely powerful for navigating large codebases or doc collections.
+
+nice to have:
+
- **[CSV Data Summarizer](https://github.com/coffeefuelbump/csv-data-summarizer-claude-skill)** — auto-analyzes CSV files with visualizations. by @coffeefuelbump. pair with [D3.js](https://github.com/chrisvoncsefalvay/claude-d3js-skill) from [[creative-and-media]] for richer visuals.
-- **[postgres](https://github.com/sanjay3290/ai-skills/tree/main/skills/postgres)** — safe read-only SQL queries with defense-in-depth security. by @sanjay3290
-- **[graphify](https://github.com/safishamsi/graphify)** (22.1k stars) — turn any folder into a queryable knowledge graph. also in [[communication-and-writing]].
+- **[postgres](https://github.com/sanjay3290/ai-skills/tree/main/skills/postgres)** — safe read-only SQL queries with defense-in-depth security. by @sanjay3290. useful if you regularly query Postgres from Claude.
## research
-- **[deep-research](https://github.com/sanjay3290/ai-skills/tree/main/skills/deep-research)** — autonomous multi-step research via Gemini. also in [[development]] and [[communication-and-writing]].
-- **[last30days](https://github.com/mvanhorn/last30days-skill)** (20.7k stars) — cross-platform topic research. also in [[communication-and-writing]].
-- **[scientific-agent-skills](https://github.com/K-Dense-AI/scientific-agent-skills)** (18.1k stars) — research, science, engineering, analysis, finance, writing.
+must-install:
+
+- **[last30days](https://github.com/mvanhorn/last30days-skill)** (20.7k stars) — cross-platform topic research. also in [[communication-and-writing]]. covers Reddit, X, YouTube, HN, Polymarket — the breadth is what makes it.
+- **[scientific-agent-skills](https://github.com/K-Dense-AI/scientific-agent-skills)** (18.1k stars) — research, science, engineering, analysis, finance, writing. massive scope.
+
+nice to have:
+
+- **[deep-research](https://github.com/sanjay3290/ai-skills/tree/main/skills/deep-research)** — autonomous multi-step research via Gemini. also in [[development]] and [[communication-and-writing]]. solid if you want Gemini doing the heavy lifting.
## debugging
-- **[root-cause-tracing](https://github.com/obra/superpowers/tree/main/skills/root-cause-tracing)** — traces errors to original trigger. from [[frameworks|obra/superpowers]].
+must-install:
+
+- **[root-cause-tracing](https://github.com/obra/superpowers/tree/main/skills/root-cause-tracing)** — traces errors to original trigger. from [[frameworks|obra/superpowers]]. this is the one to grab first.
- **[systematic-debugging](https://github.com/obra/superpowers/tree/main/skills/systematic-debugging)** — structured debugging. also in [[development]].
-- **[LangSmith Fetch](https://github.com/ComposioHQ/awesome-claude-skills/tree/main/langsmith-fetch/)** — debug LangChain/LangGraph via execution traces. by @OthmanAdi
\ No newline at end of file
+
+skip:
+
+- **[LangSmith Fetch](https://github.com/ComposioHQ/awesome-claude-skills/tree/main/langsmith-fetch/)** — debug LangChain/LangGraph via execution traces. by @OthmanAdi. only useful if you're already in the LangChain ecosystem.
\ No newline at end of file